目 录
摘 要.........................................................................................................................................1
第一章 绪论...............................................................................................................................2
第二章 硬件设计与分析...........................................................................................................3
2.1 总体设计方案..............................................................................................................3
2.2 单片机主控模块..........................................................................................................4
2.2.1 芯片介绍...........................................................................................................4
2.2.2 时钟电路设计...................................................................................................6
2.2.3 复位电路设计...................................................................................................7
2.3 驱动模块......................................................................................................................7
2.3.1 阴极驱动电路...................................................................................................8
2.3.2 阳极驱动电路...................................................................................................9
2.4 显示模块....................................................................................................................11
2.4.1 LED 的选择.....................................................................................................11
2.4.2 显示电路.........................................................................................................11
2.5 整机工作原理............................................................................................................12
第三章 软件设计.....................................................................................................................13
3.1 主程序的设计............................................................................................................13
3.2 显示程序的设计........................................................................................................14
3.2.1 LED 显示的数据传送.....................................................................................14
3.2.2 显示程序的设计.............................................................................................14
3.3 软件调试....................................................................................................................15
第四章 硬件焊接与调试.........................................................................................................17
4.1 主板的焊接................................................................................................................17
4.1.1 PCB 板的制作.................................................................................................17
4.1.2 主板的焊接.....................................................................................................18
